The main transport and commercial centre in the region is Nicoya, one of the oldest settlements in Costa Rica. Ferries run between the town of Puntarenas on the mainland and the Nicoya Peninsula. There is an international airport in Liberia and small domestic airstrips in Nosara, Carrillo and Tambor.[1] The region was also featured in the book Blue Zones, by Dan Buettner, which focused on the longevity found among Nicoya's residents.[2]